What happened: You have performed 2 SAP and Oracle installation. Upon installation of 2nd Oracle database in same server it uses same default port 1527. The 2nd database listener cannot operate in the same port 1527.

Solution: Change the port of 2nd Oracle installation in same server. Change the port value entry in the files below:

TNSNAMES.ORA
LISTENER.ORA

Restart Oracle service and oracle listener.

Files can be found in
[Oracle instalaltion drive]:\oracle\SID\ora92\network\admin

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Thank you

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Technical. SAP basis expert. Previously known as basisbibo. Now happily married and moved to Da Nang City in Central Vietnam.

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